Weatherzone meteorologists are forecasting wetter, windier and colder weather for most of the southern half of the state starting on Wednesday.

Weatherzone Head Meteorologist Matthew Pearce said the strength of the cold front would likely result in 20 to 30mm of rain along the coast and exposed areas stretching as far north as Geraldton and at least 5mm everywhere else.

Currently the weather is fine and sunny at 16 degrees with an expected top today of 25 degrees which will last until Sunday.

Some light showers should set in ahead of the cold front early next week.